Objective To observe the effect and mechanism of Huatan Tiaojing Fang,a Chinese medicine compound formulated by the principle of resolving phlegm and regulating menstruation,combined with Diane-35 on polycystic ovary syndrome (PCOS) patients with phlegm-dampness obstruction pattern. Methods A total 60 patients were randomly divided into the treatment group and the control group (each n = 30). The patients of the control group took orally Diane-35,and those of the treatment group took orally Diane-35 with Huatan Tiaojing Fang for consecutive three months. Before and after treatment, TCM symptom...